anonymous

4 years ago

Two ropes, AD and BD, are tied to a peg on the ground at point D. The other ends of the ropes are tied to points A and B on a flagpole as shown below.
Angle ADC measures 60° and angle BDC measures 30°. What is the distance between the points A and B on the flagpole?
40 feet
20 feet
30 feet
10 feet